i just got my new imac g5 isight, and its really quite remarkable, but its a bit sluggish and a few programs have quit or locked upp. i have a feeling its due to the limited amounts of memory in the machine and have already ordered a 1gb stick to bring it up to 1.5 gb of overall ddr2 memory.....however, i never remember my powerbook being that slow with numerous programs when i only had 512 in here before i upgraded to 1.25gb......iphoto 5 especially slows it down, but i think with 1.5gb in there, it should speed things up quite a bit......any thoughs?